Бренды
4/4 high-response directional valves, direct operated, with electrical position feedback and integrated electronics (OBE) 4WRPEH 6 -3X
4/4 high-response directional valves, direct operated, with electrical position feedback and integrated electronics (OBE) 4WRPEH 6 -3X
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Size 6
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Component series 3X
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Max. operating pressure 350 bar
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Nominal flow 4 l/min, 12 l/min, 15 l/min, 24 l/min, 25 l/min, 40 l/min
- Reliable - proven and robust design
- Safe - fail-safe position of the control spool in switched-off condition
- Energy-efficient - no pilot oil demand
- High quality - control spool and sleeve in servo quality
- Flexible - suitable for position, velocity and pressure control
- Precise - high response sensitivity and little hysteresis
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Type |
4WRPEH | ||
|
Size |
6 | ||
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Component series |
3X | ||
|
Design |
Directional spool valve, direct operated, with steel sleeve | ||
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Type of actuation |
Proportional solenoid with position control, OBE | ||
|
Anschlussart |
Plate connection, porting pattern according to ISO 4401 | ||
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Installation position |
Any | ||
|
Earth |
kg |
2.9 | |
|
Storage temperature range |
°C |
+10 … +40 | |
|
Ambient temperature range |
°C |
-20 … +60 | |
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Sine test according to DIN EN 60068-2-6 |
10...2000...10 Hz / maximum 10 g / 10 cycles / 3 axes | ||
|
Random test according to DIN EN 60068-2-64 |
20...2000 Hz / 10 gRMS / 30 g peak / 30 min / 3 axes | ||
|
Shock test according to DIN EN 60068-2-27 |
15 g / 11 ms / 3 axes | ||
|
Maximum relative humidity 1) |
% |
95 | |
|
MTTFd values according to EN ISO 13849 |
yrs |
150 | |
Set-up
The 4WRPEH high-response valve mainly consists of:
Functional description
The 4WRPEH is a direct operated directional control valve with electrical position feedback and integrated electronics (OBE). The integrated electronics (OBE) compares the specified command value to the position actual value. In case of control deviations, the stroke solenoid will be activated. Due to the changed magnetic force, the control spool is adjusted against the spring. Stroke/control spool cross-section is controlled proportionally to the command value. In case of a command value presetting of 0 V, the electronics adjusts the control spool against the spring to central position. In deactivated condition, the spring is untensioned to a maximum and the valve is in fail-safe position.
Failure of supply voltage
If the supply voltage fails or if the minimum supply voltage is no longer achieved as well as in case of cable break, the integrated electronics will de-energize the control solenoid, the control spool will take the fail-safe position.
